What’s Vulnerable › Vulnerabilities

CVE-2021-44827

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 54.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-03-04 · updated 2026-06-17
• Weakness: CWE-78

Description

There is remote authenticated OS command injection on TP-Link Archer C20i 0.9.1 3.2 v003a.0 Build 170221 Rel.55462n devices vie the X_TP_ExternalIPv6Address HTTP parameter, allowing a remote attacker to run arbitrary commands on the router with root privileges.

Affected products

• TP-Link Archer C20I Firmware: through 170221

References

• https://Full-Disclosure.eu
• https://full-disclosure.eu/reports/2022/CVE-2021-44827-tplink-authenticated-remote-code-execution.html
• https://www.tp-link.com/us/security
• https://Full-Disclosure.eu
• https://full-disclosure.eu/reports/2022/CVE-2021-44827-tplink-authenticated-remote-code-execution.html
• https://www.tp-link.com/us/security

Get alerted when CVE-2021-44827 or the next vulnerability affects your stack